arsenicA poisonous chemical used to kill weeds and pests. Also used in cancer therapy.
arsenic trioxide(AR-seh-nik try-OK-side) A drug used to treat acute promyelocytic leukemia (APL) that has not gotten better or that has come back after treatment with…
Arsonthe intentional and unlawful burning of a building or other property.
arson / explosivesArson investigation is the science of determining the cause of a fire. It is necessary for experts in this field to be knowledgeable in scientific, as…
ARTThe Automatic Radiotheodolite. A ground-based radio direction finder that automatically tracks a ballon-borne radiosonde.
art lineSynonym [loosely] artificial transmission line.
art or prior artA term used in consideration of the problem of patentable novelty encompassing all that is known prior to the filing date of the application in the…
Art UnitA subunit of a patent examining group. Also called Group Art Unit. MPEP 502.
Artículo 78Un procedimiento especial que se efectúa para oponerse a las actividades de un organismo administrativo.
Artículo 81Un procedimiento especial bajo la Ley de Salud Mental (Mental Hygiene Law) para nombrar a una persona como tutor de otra..
ArtemisininsA class of drugs used for the treatment (not prevention) of malaria usually as a part of a combination therapy, derived from the sweet wormwood or Qinghao…
arterial embolization(ar-TEER-ee-ul EM-boh-lih-ZAY-zhun) The blocking of an artery by a clot of foreign material.
arteriogram(ar-TEER-ee-oh-gram) An x-ray of arteries. The person receives an injection of a dye that outlines the vessels on the x-ray.
arteriography(ar-TEE-ree-AH-gruh-fee) A procedure to x-ray arteries. The arteries can be seen because of an injection of a dye that outlines the vessels on the x-ray.
artery(AR-tuh-ree) A blood vessel that carries blood from the heart to tissues and organs in the body.
Artesian water (artesian pressure)Groundwater that is under pressure when tapped by a well and is able to rise above the level at which it is first encountered.
Artesian WellWater held under pressure in porous rock or soil confined by impermeable geologic formations. An artesian well is free flowing. See confined aquifer.
Article of ManufactureA product, a physical thing. There is no clear difference between an article of manufacture and a machine. Under U.S.
Article XI, Section 11 (Texas Constitution)Provides that home rule cities may provide by charter or charter amendment and general law cities by election may select a longer term of office than 2…
articulation indexA measure of the intelligibility of voice signals, expressed as a percentage of speech units that are understood by the listener when heard out of context.
articulation score (AS)A subjective measure of the intelligibility of a voice system in terms of the percentage of words correctly understood over a channel perturbed by…
ArtifactAn object produced or shaped by human beings and of archaeological or historical interest.
Artificial ControlA weir or other man-made structure which serves as the control for a stream-gaging station.
artificial inembryonationNon-surgical transfer of embryo(s) to a recipient female. As in vitro embryo technology develops, artificial inembryonation may replace artificial…
artificial insemination(Abbreviation: AI). The deposition of semen, using a syringe, at the mouth of the uterus to make conception possible.
artificial intelligencefield of computer science that deals with the development of systems that mimic human intelligence, such as expert systems and natural language processing…
Artificial Intelligence (AI)The subfield of computer science concerned with the concepts and methods of symbolic inference by computer and symbolic knowledge representation for use…
artificial lures and fliesMeans man-made devices intended as visual attractants for fish and does not include living or dead organisms or edible parts thereof, natural or prepared…
artificial pacemaker(AR-tih-FIH-shul PAYS-may-ker) An electronic device that is implanted in the body to monitor heart rate and rhythm.
Artificial rechargeAddition of surface water to a ground water reservoir by human activity, such as putting surface water into spreading basins.
artificial seedEncapsulated or coated somatic embryos that are planted and treated like seed.
artificial selectionThe practice of choosing individuals from a population for reproduction, usually because these individuals possess one or more desirable traits.
artificial transmission lineA four-terminal electrical network, i.e. an electrical circuit, that has the characteristic impedance, transmission time delay, phase shift, and/or other…
ASAF (A)Assistant Secretary of the Air Force (Acquisition).
asantA Java-based build tool that can be extended using Java classes. The configuration files are XML-based, calling out a target tree where various tasks get…
asbestosA toxic material that was once used in housing insulation and fireproofing. Because some forms of asbestos have been linked to certain lung diseases, it…
asbestosis(as-bes-TOH-sis) A lung disease caused by breathing in particles of asbestos (a group of minerals that take the form of tiny fibers).
ASCIIAn acronym for American Standard Code that allocates a number to each key on the keyboard and that can be traded and read by most computer systems.
ASCII (Acronym for American Standard Code)ASCII is a code that assigns a number to each key on the keyboard. ASCII text does not include special formatting features and therefore can be exchanged…
ascites(uh-SY-teez) Abnormal buildup of fluid in the abdomen that may cause swelling. In late-stage cancer, tumor cells may be found in the fluid in the abdomen.
ASEDPArmy Space Exploitation Demonstration Program.
asepticSterile, free of contaminating organisms (bacteria, fungi, algae but not generally including viruses, and particularly not internal symbionts ).
asexualReproduction not involving meiosis or the union of gametes.